What is the influence of breeding in milk production?

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Solution

The quality and quantity of milk of some breeds is comparatively much better than others. For example, exotic or foreign breeds of cattle have long lactation periods and give more amount of milk. Jersey cows (Native of Island of Jersey, U.S.A.) and Brown Swiss cows (Native of Switzerland) produce on an average 60 litres of milk in a day. On the other hand, local breeds (for example, Red Sindhi and Sahiwal) produce on an.average only 6-8 litres of milk per day. Milk of Red Sindhi cow contains higher fat than those of Holstien(Native of Holand) and Brown Swiss).

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Q. Which of the following is the best breeding method for animals which are below average in productivity in milk production?

Read the following statements (A-D) and select the option which correctly identifies true (T) and false (F) statements.

A. Out-breeding is the practice of breeding related animals.
B. Out-breeding is of three types which include out-crossing, cross-breeding and inbreeding.
C. Out-crossing is the practice of mating of animals within the same breed with no common ancestor up to 2-3 generations.
D. Out-crossing is the best breeding method for animals that are below average in productivity (milk production) and growth rate (meat production).

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